Clean Fluid Manifold; Adjust Fluid Valve Packings - Graco Fusion CS20F1 Instructions - Parts Manual

Clean Fluid Manifold

Clean fluid manifold fluid ports with compatible
solvent and brush whenever removed from
gun. Do not damage the internal sealing sur-
faces. Fill fluid ports with grease if left
exposed, to seal out moisture.
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Clean or Replace Fluid Screens
1. Follow Pressure Relief Procedure, page
17.
2. Relieve pressure in hose manifold after gun
is removed.
a. Place the fluid manifold over containers,
facing away from you.
b. Ensure fluid valves are closed.
c. Very slowly open fluid manifold check
valves 2 to 2-1/2 turn. Under high pres-
sure, fluid will spray sideways from the
fluid ports.
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Fluid Ports
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3. Remove fluid screens by unthreading them
from fluid manifold.
CAUTION
To prevent cross-contamination of the check
valves, do not interchange A component and
B component parts. The A component check
valve is marked with an A.
4. Clean or replace fluid screens. See Acces-
sories, page 55.
5. Carefully inspect o-rings and fluid screen
surfaces. Replace if worn or damaged.
6. Liberally lubricate o-rings and reassemble.
Use a hex nut driver to tighten.

Adjust Fluid Valve Packings

Periodic adjustment may be necessary to stop
fluid leakage. If fluid valve is leaking, adjust the
packings:
1. Follow Pressure Relief Procedure, page
17.
2. Loosen set screw and remove valve han-
dle.
3. Turn valve packing nut clockwise in 1/8-turn
increments until leak is corrected.
4. Re-pressurize system then check for leaks.
Repeat procedure as necessary.
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Maintenance
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